Probably. Overtraining really kills a routine, because you basically have to stop completely for weeks. There are routines that have planned overtraining intervals, but they're just impractical and complicated.

Are they weighted? How many sets/reps? Close in time to other training sessions? Whats your sleep like? So many different things could easily become variables in the answering of that question. But for the most part if your nightly rest is sufficient, and you try to plan them so that they coincide with the body parts involved being trained that day as well, and or spaced so that rest is given you ought to be fine...